[oe] [meta-browser] calling all chromium recipe users

[Trevor Woerner]

When testing changes to the chromium[-wayland] recipes, it would be
great to know the layers, configurations, and MACHINEs with which
people are building.

For example I care about chromium running on X11 for minnow
(meta-intel) and raspberry pi (meta-raspberrypi). How are other people
running chromium?

Also, are you able to run with accelerated graphics? If so, what
configuration are you using?

Specifically, I assume the trick is the correct configuration of various

    PREFERRED_PROVIDER_virtual/X = Y

where X is one of {mesa|gl|egl|gles1|gles2} and Y is probably
something BSP-specific. Is anything else needed to get accelerated
graphics working with chromium?